131222141222131 has 4 divisors (see below), whose sum is σ = 131270544818064. Its totient is φ = 131173737626200.

The previous prime is 131222141222129. The next prime is 131222141222189.

131222141222131 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131222141222131 - 2¹ = 131222141222129 is a prime.

It is a super-2 number, since 2×131222141222131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131222141222131.

It is not an unprimeable number, because it can be changed into a prime (131222141222191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24201793900 + ... + 24201799321.

It is an arithmetic number, because the mean of its divisors is an integer number (32817636204516).

Almost surely, 2^{131222141222131} is an apocalyptic number.

131222141222131 is a deficient number, since it is larger than the sum of its proper divisors (48403595933).

131222141222131 is an equidigital number, since it uses as much as digits as its factorization.

131222141222131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48403595932.

The product of its digits is 2304, while the sum is 28.

The spelling of 131222141222131 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, one hundred forty-one million, two hundred twenty-two thousand, one hundred thirty-one".